Back in 2003, Google took a lot of flak for banning its AdSense affiliates from criticizing the service and if I recall correctly, discussing how much they earn. Kottke's The first rule of Google AdSense is, don't talk about Google is a nice review, from that time. Now the terms appear to have changed again, with Boing Boing noting its now OK to disclose "gross earnings" from the program.
That might be a helpful change given that it's widely expect that Google soon will be competing more strongly to retain publishers due to the expected Yahoo contextual ad expansion. In other words, if you want to keep your publishers, it's helpful to have them talking to the press about all the thousands they are earning. In addition, they were already doing before the terms were changed, as in this recent USA Today story. What are you going to do -- ban the same people that make your program sound great?
Barry at Search Engine Roundtable does a roundup of forum reaction to the changes in AdSense Adds Ad Links, Payment Options & Updates TOS. He picks up on the bigger change that excites AdSense maven Jennifer Slegg. As she covers in her AdSense offers direct deposit and payment in different currencies post, you can get direct deposit of earnings in many countries and payment in your "home" currency.
She also kicks off this Webmaster World thread, The Complete AdSense Terms & New Features Update, which as the name says covers all the changes. I mean seriously, an awesome line-by-line rundown on all that's new, changed or removed.
Note that you can't "engage in any action or practice that reflects poorly on Google or otherwise disparages or devalues Google's reputation or goodwill." As Jen points out, does that mean its OK to tell a newspaper how much you love the program and earn off of it but you're not allowed to express any worries over it?